The COVID-19 public health emergency continues to provide challenges for gas cylinder exchanges to receive and distribute cylinders that can be filled in accordance with the requalification requirements included in the Federal Hazardous Materials Regulations (HMR).  In light of these challenges, PHMSA is exercising enforcement discretion for cylinders that have exceeded their periodic requalification test dates.  

The enforcement discretion, which expires on June 30, 2021, applies to any person or entity that fills a DOT-specification cylinder used to transport a Division 2.2 non-flammable gas that has not exceeded its periodic requalification testing date by 12 months.  Cylinders will still need to meet all other requirements included in the HMR and the enforcement discretion does not extend to transport by air, vessel, or railroad.  

For more information, see the Notice of Enforcement Discretion for Cylinders in the related documents section of this page.